Science fiction gives us space wars and robot uprisings, but there's nothing as huge and awesome as a love story that spans star systems or timelines. Here's our list of the top 10 greatest romances in science fiction.

Leave it to superheroes to set an example for the rest of us, even when it comes to co-dependency and messed-up relationships. Here are some brightly costumed romances that provide anti-role models for the rest of us.

For we mere mortals, romance can be tough; after all, love is, as Pat Benetar once so tunefully pointed out, a battlefield. But some comic book characters come prepared for this kind of war. Here're 10 examples to learn from.

Are you facing the prospect of being alone on Valentine's Day? It's not too late to make someone fall in love with you. Science fiction's full of handy ways to make someone swoon into your arms, and here's a list.

Get caught up with cutting out io9's Valentines Day cards for your special cyborg? Never fear here's a special round-up of our Romance 3000AD week, which includes screwtopia, Gremlins exclusives, epic science-fiction love stories, and Toyfair previews.

Romcoms have a long history of abusing magic. Need to change a misogynist? Give him a curse. Got a protagonist who doesn't appreciate life? Kill her. Here's our list of the worst magic exploitation flicks, in order of awfulness.

If you think sex in the 21st century sucks, just be glad you don't live in one of these scifi dystopias. When Big Brother is a peeping Tom and three-penised mutants are eligible bachelors, getting off is a turn-off.

When nerds pledge our undying devotion, we do it with a bit more style. Two recent geek weddings brought the geek love: One with Star Wars-themed wedding bands, and one with a study of oxytocin levels among the guests.

One of the biggest-selling subgenres in the science fiction and fantasy worlds is something called "paranormal romance." This catchall term gets applied to everything from vampy erotica and space opera, so we asked popular paranormal romance authors to define it.

There's nothing hotter than feeling your spaceship throb beneath you as it switches into FTL drive. Same goes for the smooth metal touch of a car. Want to get busy with your machine? Here's a list of people who have.

Science fiction gives us space wars and robot uprisings, but there's nothing as huge and awesome as a love story that spans star systems or timelines. Here's our list of the top 10 greatest romances in science fiction.

Humans have been trying to find a chemical shortcut to love (or just lust) for thousands of years. But has anyone proven that aphrodisiacs work? Yes! Today, we give you five scientifically-verified substances that get you ready for love.

"Nymphomania" has fallen out of favor as a legit diagnosis among psychologists. But the hunger for sex is about to be classified as a new mental disorder: "hypersexuality." If you think about sex a lot, you might be sick.

There's no love like the non-canonical love between two characters in a media science-fiction franchise. And there's no love like the love of writers for these pairings. A surprising number of established authors have dabbled in romantic or steamy fanfic.

Futurama showed us a world with space travel, robot sidekicks, and Al Gore riding the Mighty Moon Worm, but what really made hearts beat faster were the downloadable Lucy Liu robots. How close are we to robot lovin'?

This week, while many humans ready themselves for a consumer-oriented celebration known as Valentine's Day, io9 takes you away from the hearts and candies and into Romance 3000AD. We're going to get futuristic, romantic, and a little naughty.